Korg Poly-800

Poly-800

At a time when Roland was doing well with their Juno-series, KORG countered with a poly-synth of their
own in 1983 with the Poly-800. The Poly-800 was comparable to the Juno-106, at the time, with respect to the
fact that musicians now had access to affordable programmable polyphonic analog synthesizers (it listed for
under $1,000) with memory storage, stable DCOs (digitally controlled oscillators) and a new state-of-the-art
technology called MIDI (although there was no SysEx implementation yet).

The Poly-800 is an eight-voice instrument (two more than the Juno series) with 64 memory patches (half of
what the Juno-106 offered) and up to 50 editable parameters! Like the Juno, the Poly-800 had one DCO per
voice, although it did feature a Double mode in which the oscillators could be stacked up for a fuller sound
and only four voices of polyphony. The analog filter is a 24dB/oct low-pass which is shared by all voices
(the Juno has separate filter chips for each voice). There's also a stereo chorus effect, chord memory, a simple built-in
sequencer, three digital envelope generators (for the oscillators, the noise generator and the filter), and a funky joystick used to adjust the pitch, modulation and the
filter.

Unlike the Juno, which was still a “studio” instrument, the Poly-800 was built for the performer.
With a light-weight plastic case (only 10 lb.), a couple low-profile sliders/knobs and only 49 keys,
the Poly-800 can run on batteries and has guitar strap pegs so it can be worn like a keytar. A less common
reversed color keys model was released for a unique look as well.

EX-800

In 1984, a keyboardless tabletop/rackmount version was released, called The EX-800. In both the Poly and
EX models, all sound editing is accomplished by scrolling to a given parameter, described by little more
than a two-digit number, and pushing the up or down buttons to adjust it. Fortunately every parameter’s
two-digit numeric code and data-range is printed on the faceplate. Obviously, the Juno series has the edge
over the Poly-800 when it comes to hands-on editing, however, some sort of external MIDI controller is
usually sufficient to get more hands-on and real-time control.

Poly-800 mkII

The Poly-800 model was succeeded by the the Poly-800 mkII (pictured above) in 1985. The mkII added digital
delay effects, MIDI SysEx functionality and a darker paint job. Note that the Siel DK70 is very similar to the Poly-800.
Poly-800s have been used by Orbital,
Depeche Mode, Sneaker Pimps, Vangelis, Geoff Downes, Nick Rhodes (Duran Duran), Yesterdays and Jimi
Tenor.

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Related forum topics

hi i got a juno 106, i like it. Recently i have the possibility to buy a very cheap poly 800; are they (and in what way) comparable in sound? i read the review on VSE, differnt synths are su... | Read more...

Audio Clip 1 - A sequenced Poly 800 MkII demo (the original voice 45 "digital bass" patch) with the use of the "VCF" function of the joystick and addition of digital delay at the end, submitted by Paolo Palazzi.